255231122145 has 16 divisors (see below), whose sum is σ = 429862943040. Its totient is φ = 128958882624.

The previous prime is 255231122143. The next prime is 255231122207. The reversal of 255231122145 is 541221132552.

It is not a de Polignac number, because 255231122145 - 2¹ = 255231122143 is a prime.

It is a super-2 number, since 2×255231122145² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255231122143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447773614 + ... + 447774183.

It is an arithmetic number, because the mean of its divisors is an integer number (26866433940).

Almost surely, 2^255231122145 is an apocalyptic number.

It is an amenable number.

255231122145 is a deficient number, since it is larger than the sum of its proper divisors (174631820895).

255231122145 is a wasteful number, since it uses less digits than its factorization.

255231122145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895547824.

The product of its digits is 24000, while the sum is 33.

Adding to 255231122145 its reverse (541221132552), we get a palindrome (796452254697).

The spelling of 255231122145 in words is "two hundred fifty-five billion, two hundred thirty-one million, one hundred twenty-two thousand, one hundred forty-five".